autumnalis
From LSJ
γραμματική ἐστιν ἐμπειρία τῶν παρὰ ποιηταῖς τε καὶ συγγραφεῦσιν ὡς ἐπὶ τὸ πολὺ λεγομένων → grammar is a practical knowledge of the usage of poets and writers of prose
Latin > English (Lewis & Short)
autumnālis: -nesco, -nĭtas, -no, -num, -nus, v. auctumnalis, etc.
Latin > French (Gaffiot 2016)
autumnālis,¹⁶ e (autumnus), d’automne : tempus autumnale Varro R. 1, 39, 1, saison d’automne ; cf. Cic. Arat. 34, 287 ; Liv. 31, 47, 1.